Demand for rubber was robust due to expanded use of the automobile in the United States.
After the stock market crash of 1929 the Great Depression hit the United States and rubber demanded once again softened.
The agreement in effect formed a cartel of rubber producing nations.
[4] Other major rubber consuming states, such as Japan or the Soviet Union, received no representation.
In the Fordlandia venture, Henry Ford failed in an attempt to produce rubber in Brazil.
Also other technologically advanced countries like Germany and the Soviet Union developed in the interwar period synthetic rubber (e.g.